20118130 has 16 divisors (see below), whose sum is σ = 36546840. Its totient is φ = 7972992.

The previous prime is 20118107. The next prime is 20118179. The reversal of 20118130 is 3181102.

It can be written as a sum of positive squares in 4 ways, for example, as 19000881 + 1117249 = 4359^2 + 1057^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8139 + ... + 10318.

Almost surely, 2^20118130 is an apocalyptic number.

20118130 is a deficient number, since it is larger than the sum of its proper divisors (16428710).

20118130 is a wasteful number, since it uses less digits than its factorization.

20118130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18573.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 20118130 is about 4485.3238456103. The cubic root of 20118130 is about 271.9751364960.

Adding to 20118130 its reverse (3181102), we get a palindrome (23299232).

The spelling of 20118130 in words is "twenty million, one hundred eighteen thousand, one hundred thirty".